11 - add support for cgroups v2
12 - Skip reading files in Miri
18 - fix parsing zero or multiple optional fields in cgroup mountinfo.
24 - add Linux cgroups support when calling `get()`.
30 - fix `get` on OpenBSD to ignore offline CPUs
31 - implement `get_physical` on OpenBSD
37 - Use `mem::zeroed` instead of `mem::uninitialized`.
43 - add `hermit` target OS support
44 - removes `bitrig` support
48 - fix `get_physical` count with AMD hyperthreading.
54 - improve `haiku` CPU detection
60 - add `illumos` target OS support
61 - add default fallback if target is unknown to `1`
67 - add `sgx` target env support
73 - add `wasm-unknown-unknown` target support
79 - add `get_physical` support for macOS
83 - use `_SC_NPROCESSORS_CONF` on Unix targets
89 - revert 1.6.1 for now
95 - fixes sometimes incorrect num on Android/ARM Linux (#45)
101 - `get_physical` gains Windows support
107 - fix `get` to return 1 if `sysconf(_SC_NPROCESSORS_ONLN)` failed
113 - `get()` now checks `sched_affinity` on Linux
119 - add `haiku` target support
125 - add `redox` target support
131 - fixes `get_physical` count (454ff1b)
137 - add `emscripten` target support
138 - add `fuchsia` target support
144 - added `get_physical` function to return number of physical CPUs found
150 - `get` function returns number of CPUs (physical and virtual) of current platform